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What do the official home upgrade prices say for heat_pump, ground_source in England and Wales?

Home upgrade prices in England and Wales, from Department for Energy Security and Net Zero. An official figure as of 30 June 2026.

An official average or median published by a statistics office or regulator, not individual sales.

£27,232 per installation, median

Reported installed cost of a ground source heat pump with a Boiler Upgrade Scheme grant in England and Wales: median £27,232 (middle half of installations: £18,136 to £42,110), as declared by installers on the MCS certificate. Official median published by Department for Energy Security and Net Zero (DESNZ), with data from Ofgem and the Microgeneration Certification Scheme for 2026 Q2.

Reference period
2026 Q2 (the period the publisher states for this figure)
Kind of figure
An official median published by Department for Energy Security and Net Zero. It is passed on as published: no range of ours, and no count of records unless the publisher gives one.

Reported installation cost at grant redemption (MCS certificate), as the installer declared it; not a quote.

Source: Department for Energy Security and Net Zero. Licence: Open Government Licence v3.0. Live answer: /api/v1/home-upgrades?country=GB&measure=heat_pump&technology=ground_source

Where this comes from

Source
Boiler Upgrade Scheme statistics, published by Department for Energy Security and Net Zero (DESNZ), with data from Ofgem and the Microgeneration Certification Scheme
Licence
Open Government Licence v3.0 (GOV.UK: "All content is available under the Open Government Licence v3.0, except where otherwise stated"); Crown copyright
Attribution
Contains public sector information licensed under the Open Government Licence v3.0. Source: Department for Energy Security and Net Zero, Boiler Upgrade Scheme statistics (data from Ofgem and the Microgeneration Certification Scheme).
Figures as of
. This page is rebuilt when the daily price library is deployed.
How fresh the source is
Monthly (the cost tables are updated each quarter, in January, April, July and October; the latest quarter ends about three months earlier)
Limits
England and Wales only (the scheme does not run in Scotland or Northern Ireland), and only homes that took a BUS grant. One national figure per technology and quarter: no regions, no dwelling types. The cost is the installer's self-reported cost on the MCS certificate (system, labour and VAT; it should include the grant, which installers may read differently), not a receipt or a quote. Costs for fewer than 5 installations are suppressed by DESNZ, so ground source, biomass and shared-loop figures can be missing for a quarter. DESNZ does not publish the number of installations behind a quarterly cost, so there is no sample size. Quartiles are 25th/75th percentiles, not 10th/90th.
Rule
A figure built from records is shown only when at least 5 records sit behind it; official statistics are shown as such, with their reference period. See how we earn trust and the method.

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Using the ProofPrice MCP server (pricepaid_home_upgrade_prices): What do the official home upgrade prices say for heat_pump, ground_source in England and Wales? Give the figure with its unit, the period it covers, the number of records where the source states one, and cite the source and licence.

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Information, not a valuation or offer. Ranges describe past recorded prices.